Core Peptides

CJC-1295 order showed up fine and the vials looked right. Pricing has been creeping up though.

Product is fine and arrived ok. Just a bland unmarked box and the GHK-Cu I wanted was backordered two weeks.

Solid all around. Ordered TB-500, came in three days, packaging was secure. Customer service answered my question quick.

Two day delivery, semaglutide reconstituted perfectly clear. Exactly what I wanted.

One of two ipamorelin vials looked light compared to the other. Emailed them and they were polite about it but I'm knocking a star.

BPC-157 came quick enough. Wish more products had the COA posted upfront instead of having to ask every time.

Tirzepatide order, my second from them. Same fill, same fast shipping. Glad I found a steady source.

Product was good but it took three days to get an answer to a simple shipping question. Otherwise fine.

I've been researching peptides for years. CJC-1295/ipamorelin and wolverine blends to be specific. I switched to core peptides hoping to save a little bit of money. horrible mistake. The CJC/Ipa blend was clumpy and wouldn't dissolve. It wasn't my bac water because I tried again with a vial from my previous brand, worked great. Worst part is that once I FINALLY got a response from customer service they were useless. No refund, blamed me, wouldn't take ownership. Their lab tests look a bit suspect too. I won't be ordering again.

Start with the good, lots of options! —but they around of stock of what I want. Then I click on their COAs and it’s just an auto generated image, if they do have real 3rd party testing? please correct me if so…

Ordered retatrutide, shipped same day since I beat the cutoff. Showed up fast and well packed.

First time ordering, BPC-157/TB-500 blend. Arrived in 3 days, vials looked perfect, COA emailed when I asked.

Four orders in, never a problem. MK-677 and ipamorelin both consistent. Site says UPS but it always ships USPS, minor thing.

third vendor ive tried for sema and core peptides is the only one where i actually felt confident in what i was getting. Purity report was right there on the product page which none of the other places had. Shipping was like 2 days to florida. Only thing id say is the website could be a litle easier to navigate but thats a minor complaint lol. Product itself is 10/10

Decent product and it came fast, but their semaglutide crept up in price since my last order. Shopping around now.

Been running studies with Core Peptides' TB-500 and their CJC-1295 + Ipamorelin blend for the past six weeks. Both products have exceeded expectations in terms of purity and consistency. The TB-500 showed 99.2% on the COA which is outstanding, and the combo blend was right at 98.7%. Packaging is professional with proper temperature control during shipping. They include reconstitution instructions which is helpful for new researchers. Customer service answered my questions about storage requirements promptly. The pricing is fair given the quality standards they maintain. No complaints whatsoever - this is how a peptide research supplier should operate.

I was skeptical about GHK-Cu tbh but decided to give it a shot from Core after reading some studies. The product arrived in 3 days, well packaged with desiccant packets and proper labeling. Ive been really impressed with the results so far. Already placed a second order and added some NAD+ to try as well. These guys are becoming my go-to for sure

Quick shipping, GHK-Cu tested clean, packaging tight. Reordering.

This is my third order of the CJC/Ipa combo from Core Peptides and I keep coming back for a reason. The blend is precisely dosed and the purity testing documentation they provide is legit - I actually verified the batch number on their site and it matched perfectly. For research purposes this has been the most consistent source I've found. The vacuum seal on the vials is solid and they ship with ice packs even in summer. Communication is professional and they respond to technical questions within a few hours. Pricing might be slightly higher than some competitors but you get what you pay for in terms of quality control. Highly recommend for serious research applications.

Got a tracking number that never updated, then the package showed up days later with no warning. Product was fine but the communication wasn't.